With multi-channel triggering, stable signal transmission, built-in 2.4G wireless transmission that provides 100 further transmission distance and creative triggering methods can all be achieved by using the Godox X1S TTL Wireless Flash Trigger Set. Its compatible with the Sony DSLR cameras with MI shoe and TTL autoflash systems. This allows you to trigger either the camera shutter, studio flash heads and the camera flash all wirelessly with a grouping system of 5 groups and 32 channels. Powerful features include: Fully supporting TTL functions such as a High-Speed Sync (HSS) of 1/8000s, Flash exposure compensation, flash exposure lock, modelling flash; fairly large backlit LCD panel to offer convenient operation; synchronisation delay setting; zoom setting and an included USB port to do latest firmware upgrades. Additionally, the kit includes a transmitter and receiver that operates on two AA batteries.